Search Documents

Search Again

Search Again

Refine Search

Publication Date
Clear

Refine Search

Publication Date
Clear
Organization
Organization
  • SME-ICGCM
    Prediction of surface movement with emphasis on horizontal deformation due to mining

    By Mao Bai

    In predicting the integrity of under-mined structures, surface horizontal displacements and curvatures are frequently of greater importance than the more homogeneous vertical displacements. Accurate e

    Jan 1, 1989

  • SME-ICGCM
    Cost Preventive System To Control Unstable Roof In Main Line Haulage Entries

    By John Popovich

    The MICON RokLok binder system including component and consolidation processes and safety and its first aide are described. The implementation procedures and selection of injection parameters are disc

    Jan 1, 2001

  • SME-ICGCM
    Microcomputer Simulation of Rock Blasting to Predict Fragmentation (e1b89d1b-bf88-4e3c-9f38-0d3739330b7a)

    By C. Dinis da Cama

    In order to reduce the complexity of mechanisms influencing rock- fragmentation by blasting a simulation approach is proposed, using the capabilities of micro-computer interactive graphics. Situat

    Jan 1, 1984

  • SME-ICGCM
    Innovative Secondary Support Technologies For Western Mines

    By Thomas M. Barczak

    With the development of the shield support, the primary requirement for successful ground control in longwall mining is to provide stable gate road and bleeder entries. Wood cribbing has been the domi

    Jan 1, 1996

  • SME-ICGCM
    Subsidence prediction using a laminated linear model

    By Miklos D. G. Salamon

    If all stratifications are horizontal, the computation of surface deformation induced by coal mining involves the prediction of roof and floor convergence and then the transfer of the effects of this

    Jan 1, 1989

  • SME-ICGCM
    Coal Pillar Strength Based On The Ground Reaction Curve - A New Approach

    By Kazem Oraee

    In underground coal mining, particularly room-and-pillar methods, the coal pillars play a significant role in roof stability. If the pillar dimensions are increased, the pillar bearing capacity also i

    Jan 1, 2009

  • SME-ICGCM
    Technique To Measure Resultant Load Vector On Shield Supports (b937ef33-c51b-4de4-a956-dc8be749fea8)

    By Thomas M. Barczak

    The resultant load vector is the representation of the forces applied to a longwall roof support element by caving strata into a single, quantifiable measure of support resistance. The relatively comp

    Jan 1, 1984

  • SME-ICGCM
    Upgraded Comprehensive and Integrated Subsidence Prediction Model CISPM - W

    By Yi Luo

    In dealing with various subsidence cases, accurate predictions of mining induced subsidence are the basis for correct assessment of subsidence influences and subsequent mitigation efforts. There is a

    Jan 1, 2008

  • SME-ICGCM
    An Applications Approach To Barrier Pillar Design For Improved Resource Recovery

    By John R. Koehler

    Available barrier pillar design methods do not adequately account for overburden caving characteristics, the timing and magnitude of associated load transfers, the occurrence of unusual geologic featu

    Jan 1, 1989

  • SME-ICGCM
    Stress Variation on Longwall Powered Supports in Upper Seam due to the Presence of Old Mined Out Workings in Lower Seam

    By Vedala Sastry

    Longwall mining for coal extraction in deeper deposits is gaining momentum in India, due to the increasing stripping ratios and depletion of shallow deposits amenable for surface mining. In longwall

    Jan 1, 2007

  • SME-ICGCM
    Drainage Of Water From Abandoned Mines By Horizontal Drilling

    By Alan J. Zeni

    Drainage of water from abandoned underground mines has become important in recent years because of safety concerns when mining near abandoned works or reentering abandoned mines for further developmen

    Jan 1, 1990

  • SME-ICGCM
    Effects Of Subsidence On Steep Topography And Cliff Lines

    By Don Kay

    A two year study into the effects of coal mining induced subsidence on cliff lines was undertaken by the Department of Mineral Resources with the support of a grant under the National Energy Research,

    Jan 1, 1992

  • SME-ICGCM
    Probabilistic Analysis of Blasting Impact on Open Pit Stability (95ce6127-68ed-453f-9268-476a1af1dd45)

    By Dae S. Young

    A new probabilistic approach is introduced for slope stability analysis including adverse impact of blasting vibrations. The material strength within a slope area is randomized in this bi-variate join

    Jan 1, 1984

  • SME-ICGCM
    Ground Control and the Inundation of the Retsof Mine

    By Vincent A. Scovazzo

    On March 12, 1994, the 1,100-foot deep 2 Yard South panel of the 1l0 year-old Retsof Mine collapsed. At the time of this occurrence, the Retsof Mine was characterized as the world's largest, most

    Jan 1, 1997

  • SME-ICGCM
    Support selection of mine roadways by means of a computer program

    By Erdal Ünal

    The computer program introduced in this paper is based on design guidelines developed for selection of support systems used in mine roadways. The support types considered include rock bolts as well as

    Jan 1, 1989

  • SME-ICGCM
    Theoretical analysis of breaking strength of mine pillars and test specimens

    By D. S. Choi

    This paper presents a theoretical analysis of the effect of shape and size on strength of geologic materials. The results indicate that the shape effect is caused by the development of confining press

    Jan 1, 1989

  • SME-ICGCM
    Hydraulic stowing - A solution for subsidence due to underground mining in the USA

    By Kausik M. Sinha

    Hydraulic stowing, which is being practiced in several major coal producing countries to deal with adverse mining conditions, usually permits almost 100% coal recovery from underground mines with mini

    Jan 1, 1989

  • SME-ICGCM
    Rib Support Innovation At Daw Mill Colliery (a22a0861-1502-4d3d-a2cd-8a6ba0c13271)

    By Jon Bowler

    Daw Mill Colliery, UK Coal, near Coventry in England, mines the Warwickshire Thick Seam at 800 m/2500 ft depth using longwall retreat with gateroads supported by rockbolts. Over the last eight years

    Jan 1, 2009

  • SME-ICGCM
    Field Test Results On Dyna-Rok And Dyna-Rok Plus Anchors

    By James J. Scott

    Research and development has been carried out on the patented Dynamic Rock Anchor, tradenamed DYNA-ROK and DYNA-ROK PLUS Anchors, which are manufactured and marketed by Ingersoll-Rand Company. This pa

    Jan 1, 1990

  • SME-ICGCM
    Numerical Modelling of the Range of Rock Fracture Zone Around Gateroads on the Basis of Underground Measurement Results (edbcb7c0-6a88-4056-904b-d121adf0097c)

    By Andrzej Walentek

    This paper presents the results of numerical modeling of the fractured zone around longwall gateroads. The numerical computations have been based on the results of underground measurements of the frac

    Jan 1, 2009